org.objectledge.container
Class LedgeContainer

java.lang.Object
  org.objectledge.container.LedgeContainer

public class LedgeContainer
extends Object

LedgeContainer is a NanoContainer flawor, that uses the FileSystem component for loading the composition file. The composition file is parsed using Ledge XmlFrontEnd. LedgeContainer also pre-feeds the internal PicoContainer with objects required by various container subsystems, including a FileSystem, ClassLoader and confiuration directory path.

Version:

$Id: LedgeContainer.java,v 1.14 2005/07/07 08:30:02 zwierzem Exp $

Author:

rafal@caltha.pl

Field Summary

private static org.picocontainer.Parameter	COMPONENT
static String	COMPOSITION_FILE Location of the container composition file.
static String	CONFIG_BASE_KEY Config base path key.
protected org.nanocontainer.integrationkit.ContainerBuilder	containerBuilder The embedded container builder.
protected org.picocontainer.defaults.ObjectReference	containerRef The embedded container.
static String	FRONT_END_CLASS Default xml front end implementation.

Constructor Summary

LedgeContainer(FileSystem fs, String configBase, ClassLoader classLoader)
Creates an instance of the LedgeContainer.

Method Summary

private static org.picocontainer.Parameter	component(Object key)
private static org.picocontainer.Parameter	constant(Object value)
protected static org.picocontainer.PicoContainer	getBootContainer(FileSystem fs, String configBase, ClassLoader classLoader) Returns the boot component container.
protected static URL	getCompositionFile(FileSystem fs, String configBase) Verifies and returns the composition file.
org.picocontainer.MutablePicoContainer	getContainer() Returns the embedded container.
void	killContainer() Kills the embedded container.
private static org.picocontainer.Parameter[]	params(org.picocontainer.Parameter... parameters)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

COMPOSITION_FILE

public static final String COMPOSITION_FILE

Location of the container composition file.

See Also:

Constant Field Values

FRONT_END_CLASS

public static final String FRONT_END_CLASS

Default xml front end implementation.

See Also:

Constant Field Values

CONFIG_BASE_KEY

public static final String CONFIG_BASE_KEY

Config base path key.

See Also:

Constant Field Values

containerRef

protected org.picocontainer.defaults.ObjectReference containerRef

The embedded container.

containerBuilder

protected org.nanocontainer.integrationkit.ContainerBuilder containerBuilder

The embedded container builder.

COMPONENT

private static final org.picocontainer.Parameter COMPONENT

Constructor Detail

LedgeContainer

public LedgeContainer(FileSystem fs,
                      String configBase,
                      ClassLoader classLoader)
               throws IOException,
                      ClassNotFoundException,
                      org.nanocontainer.integrationkit.PicoCompositionException

Creates an instance of the LedgeContainer.

Parameters:

fs - the FileSystem

configBase - configuration directory.

classLoader - the classload to load classes with.

Throws:

IOException - if the composition file could not be read.

ClassNotFoundException - if the container builder class could not be instantiated.

org.nanocontainer.integrationkit.PicoCompositionException - if the composition file is invalid, or could not be verified due to system failure.

Method Detail

getContainer

public org.picocontainer.MutablePicoContainer getContainer()

Returns the embedded container.

Returns:

the embedded container.

killContainer

public void killContainer()

Kills the embedded container.

getCompositionFile

protected static URL getCompositionFile(FileSystem fs,
                                        String configBase)
                                 throws IOException,
                                        org.nanocontainer.integrationkit.PicoCompositionException

Verifies and returns the composition file.

Parameters:

fs - the FileSystem to load compositoin file from.

configBase - configuration directory.

Returns:

the composition file.

Throws:

IOException - if the file could not be read.

org.nanocontainer.integrationkit.PicoCompositionException - if the composition file is invalid, or could not be verified due to system failure.

getBootContainer

protected static org.picocontainer.PicoContainer getBootContainer(FileSystem fs,
                                                                  String configBase,
                                                                  ClassLoader classLoader)

Returns the boot component container.

Parameters:

fs - the FileSystem

configBase - configuration directory.

classLoader - the classload to load classes with.

Returns:

the boot component container.

params

private static org.picocontainer.Parameter[] params(org.picocontainer.Parameter... parameters)

constant

private static org.picocontainer.Parameter constant(Object value)

component

private static org.picocontainer.Parameter component(Object key)